There are never any guarantees, but generally it is not a problem.

You should expect to provide proof of your timely departure.

Generally one does not get detained at a master calendar hearing unless there is an existing removal order or criminal warrant.

For a long time now the visa category has been current, so yes you can file to adjust if you are in lawful status and of course you can stay in the...

You should direct your inquiry to USCIS.

They will not look for fraud, but it will raise red flags. They do not want U.S. citizens bringing in multiple foreign nationals based on marriage.

There is no rule against it. But to succeed you will have to prove you are moving to the U.S., and you will need an affidavit of support signed by...

An application for change or extension of status can stay in the U.S. until there is a decision on that application.

It depends on the purpose of his trip, and of course, on your immigration status.

The short answer is no, you cannot.